<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>

        ul li{

            list-style: none;
            padding-top: 20px;
        }
        #leftmain{

            border-style:solid ;
            border-color: #b9def0;
        }
        #leftmain,#youbian{

            display: inline-block;
        }

    </style>
</head>
<body>
<h2>论文管理系统</h2>
<div>欢迎您！<span th:text="${username} " ></span><a href="/login">&nbsp;<span>注销</span></a></div>
<div id="leftmain" style=" width: 200px; height: 500px;">
    <h3>功能列表</h3>
    <ul>
        <a href="#"><li>用户管理</li></a>
        <a href="/lunwen"><li>论文管理</li></a>
        <a href="#"><li>公共代码</li></a>
        <a href="#"><li>退出系统</li></a>
    </ul>

</div>
<div id="youbian">
<h2 th:text="${username} "></h2>
    <p>欢迎来到论文系统</p>
</div>

</body>
</html>